Tool joint tong



T. P. WILLIAMS TOOL JOINT TONG Aug. 4, 1931.

Filed April 15. 1929 Patented Aug. 4, 1931 TODD r. WILLIAMS, orv HOUSTON, TEXAS TOOL JOINT Tone Application filed April 15,

This invention relates to new and useful improvements in a tool joint tong.

One object of the invention is to provide 'a tong of the character described specially 5 applicable to a tool joint member and pro- ,vided for the purpose of maklng up a drill stem or other pipe whose sections are connected by tool joints.

Another object of the invention is to pro- 19 vide a tong of the character described which may be applied to the upper tool joint member and when applied w1ll not be llable to be displaced therefrom while accomplishing the work of making up or screwing together the members of the tool joint in the work of connecting together, or making up the sections of a drill stem. With the above and other objects in view the invention has particular relation to cer- 29 tain novel features of construction, operation and arrangement of parts an example of which is given in this specification and illustrated in the accompanying drawings wherein:

Figure 1 shows a plan view of the tong as applied to the tool joint, and

Figure 2 shows a side elevation thereof. Referring now more particularly to the drawings wherein like numerals of reference 30 designate similar parts in each of the figures the numeral 1 designates the tong handle whose operative end has a beveled. face 2 and a detachable, toothed jaw 3, is secured, in any preferred manner to said face. 5 The numeral 4 designates an arcuate clamp one end of which is extended and formed with the spaced fingers 5, 5 which embrace said handle and to which the handle is secured by the bolt 6 which is fitted through 49 said fingers and through the handle and one end of which has the enlarged head and whose other end is outwardly threaded and has the nut 8 screwed thereon. The inner side of the clamp 4 has an inwardly extending arcuate shoulder 9 around its upper margin which describes slightly morethan a I semicircle. The numerals 10, 11 designate upper and lower sections of the drill stem which are connected by the pin member 12 and the box member 13 of the conventional end of which has pipe engaging means, a

1929. Serial No. 355,341.

tool joint which has a somewhat larger diameter than that of the sections 10, 11.

In application the handle 1 is swung around until it contacts against the opposing faces 13 of the clamp so as to move its 5.51

operative end as far as possible from the free end of the clamp 4 and the tongmay then be applied to the section 10 above the tool joint and moved downwardly about the upper end of the section 12 withthe shoul- 60. der 9 resting on said upper end. The handle may be then swung around to the right in the usual manner and the jaw 3 and clamp 4 will grip said tool joint member 12 and the same may be thereby turned and screwedup. When the tong is thus applied to the tool joint it will not be liable to be displaced for the reason that the operative end of the handle 1 can not be moved far enough away from the free end of the clamp 4 to permit the passageway of the tool joint between them and the tong has to be elevated above the tool joint to permit its release from the drill stem.

A preferred embodiment of the tong has been illustrated and described by way of example while the broad principle of the invention is comprehended within the scope of the appended claims.

What I claim is:

1. A tong for application to a pipe whose sections are connected by an enlarged coupling, said tong including a handle, an engaging jaw at one end thereof, a clamp pivoted to the handle and formed with an arcuate engaging face, an inwardly extending projection carried by said clamp adjacent said face and provided to rest on the upper end of said coupling when the tong is applied to the pipe, means for limiting the movement of the handle relative to said engaging face so that the maximum opening between said jaw and face is less than the diameter of said coupling which will pre- Vent the passage of said coupling through said opening.

.2. A tong for application to a pipe whose sections are connected by anenlarged coupling, said tong including a handle, one

clamp pivoted to the handle adjacent said end, and formed with an engaging face shaped to engage around said pipe, an inwardly extending projection carried by the clamp and shaped to rest on the upper end of said coupling When the tong is applied to the pipe, means for limiting the movement of the handle relative to said face so that the maximum opening between said handle end and said face is less than the diameter of the coupling which will prevent the passage of the coupling through said opening.

In testimony whereof I have signed my name to this specification.

TODD P. WILLIAMS.- 

